Mercedes-Benz GLB-Class Service Bulletins

292 manufacturer communications on file.

• May 15, 2025•Document ID: 11018625

  Warranty Program/Extension
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  EW - Tank Leakage

  Date Added:

  May 28, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection (DMTL) in certain Model Year (“MY”) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles (vehicles certified as LEV II) and 15 years/150,000 miles (vehicles certified as LEV III), whichever occurs first, for the following condition: • Under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code (DTC) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp (‘MIL’).

  Associated Products (57)

  2023 Mercedes-Benz SL-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz AMG GT2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz CLS-Class2022 Mercedes-Benz E-Class2022 Mercedes-Benz G-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2022 Mercedes-Benz GLC-Class2022 Mercedes-Benz GLE-Class2022 Mercedes-Benz GLS-Class2022 Mercedes-Benz S-Class2022 Mercedes-Benz SL-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz AMG GT2021 Mercedes-Benz C-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz CLS-Class+ 37 more
  Associated Documents

  • DownloadMC-11018625-0001.pdf↗
• May 7, 2025•Document ID: 11018164

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.65-P-078762

  Date Added:

  May 8, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Please note that the exact quick test conditions must be met as seen below. If not exactly as listed below, there is no need to create a TIPS case referencing this LI unless further assistance is needed outside of this document. Conditions Instrument Cluster Message: "Park Assist Inoperative" and Hardware part numbers: A0009019716 or A0009016022 B223263 with Bosch-ID C259; A+S (Active and Stored) and B223255 with Bosch-ID 1B5D; A+S (Active and Stored) Notes: • Other DTC's are permitted but the above three conditions must be met. If they are not met, this LI is not applicable. • See attachment "LI Criteria" for an example. • Attachment portrays a quick test with non-matching criteria and therefore does not require a TIPS case. Cause Under analysis. Remedy Please do not make any attempts to repair the park control unit. Do not flash or SCN code. Open a TIPS case.

  Associated Products (53)

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  Associated Documents

  • DownloadMC-11018164-0001.pdf↗
• May 5, 2025•Document ID: 11018031

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-078303

  Date Added:

  May 6, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control unit software N168 Remedy For vehicles before modification year 23/2: Perform SCN coding in control unit OMSH223 (N168). For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be possible in future. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

  Associated Products (44)

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  Associated Documents

  • DownloadMC-11018031-0001.pdf↗
• May 2, 2025•Document ID: 11018215

  Service Campaign
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  NCU-2025040008

  Date Added:

  May 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the SCN coding in the Belt-driven Starter Alternator (BSA) control unit does not correspond to the latest production specifications. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform an SCN coding in the BSA control unit.

  Associated Products (17)

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  Associated Documents

  • DownloadMC-11018215-0001.pdf↗
• May 2, 2025•Document ID: 11018206

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-071499

  Date Added:

  May 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM or EZS cannot record the data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage. Remedy 1) If the battery is discharged, charge the battery. Review WS54.00-P-0037B for minimum charger specifications. • Note the amperage difference between trickle (maintainer) chargers of at least 16A and quick chargers of at least 30A. • Review AP54.10-P-5449U. Note when battery is sufficiently charged the charger current is less 5A. 2) While charging the battery, analyze the vehicle data to determine root cause of discharge using the following data points: • NOTE: For guidance on use of the on-board electrical data please review the AKUBIS video titled "New onboard electrical system diagnosis shown on BR 166". The video can be accessed through WIS by following the path WSM--> content by model series --> passenger cars --> ML-Class --> Model 166 --> group 54 --> New onboard electrical system diagnosis. • Refer to the March 2023 PCTT for the video walkthrough of analysis as well as the attachment of the slides to this Li. For Star 2 vehicles: -Review FSAM on-board electrical data conspicuous records • NOTE: This data can be found via FSAM N10/6 -> Actual Values -> On-board electrical system -> On-board electrical system data For Star 3 vehicles: -Review N73/3 EZS on-board electrical data conspicuous records • NOTE: This data can be found via EZS N73/3 -> Actual Values -> On-board electrical system -> On-board electrical system data 3) Determine if root cause is due to: • vehicle technical issue? • customer behavior? NOTE: Recommend using battery analysis sheet found in XiW -> Local Contents -> Diagnostic info -> Battery Discharge Worksheet 4) If battery still does not accept charge, create a TIPS case. -Must include with the case: • Amperage setting of charger and time battery was on charger • XENTRY Battery Tester results • Voltage of battery taken with multimeter: Do not connect charger while taking measurements • N10/6 FSAM and N73/3 EZS CUL • Workshop analysis of conspicuous data • Root cause analysis for battery discharge based on the above documents (technical, customer, etc.) • NOTE: For expedited results when creating a case write customer complaint as "XENTRY Battery Tester implausible".

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  Associated Documents

  • DownloadMC-11018206-0001.pdf↗
• April 28, 2025•Document ID: 11017500

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078896

  Date Added:

  May 2, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy Check for external damage: You can identify a damaged headlamp in the following way: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent, then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: External damage to the headlamp does not present a warranty or goodwill case. 1. Clear fogged/condensed LED headlamps and LED rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). 7. If the condensation has disappeared, nothing else has to be done. Note: If defrosting has been performed, you can skip the first step. 2. Leak test of headlamp with overpressure: • Connect test adapter to pressure tester. (Figure 1) • Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. • All vents have to be sealed with sealing compound and the existing diaphragm with the stamp (picture 3 [3]). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). • Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. • Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). • Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged (picture 6). • If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is tight and there is natural physical condensation. • If a higher pressure drop than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. If the pressure test is not passed, the headlamp is leaky. If the cause cannot be rectified, the headlamp must be replaced. Note: If the headlamp is replaced, no dry packs may be installed on the new replacement headlamp. AR82.10-P-5455WT was created for the pressure test. This AR can be used as a reference manual for all closed headlamps. In the event of an open headlamp system, the vent ducts must be sealed before the pressure test.

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  Associated Documents

  • DownloadMC-11017500-0001.pdf↗
• April 28, 2025•Document ID: 11017496

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078301

  Date Added:

  May 2, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for damage. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078896 The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions.

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  Associated Documents

  • DownloadMC-11017496-0001.pdf↗
• April 24, 2025•Document ID: 11017226

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-078888

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster Cause Fault code "P0A7F00" stored in the 48 V battery G1/3 and/or is current. Remedy Perform guided test for fault code "P0A7F00". Important! To ensure a bus idle of 90 minutes is achieved, the vehicle should be locked and the key placed a minimum of 30 feet from the vehicle)

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  Associated Documents

  • DownloadMC-11017226-0001.pdf↗
• April 22, 2025•Document ID: 11017210

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.30-P-079004

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The message "Device detected at diagnostics connection See Operator’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause For vehicles with HERMES 3.0, • A2389015700 • A2389015800 • A2389018400 • A2389018900 • A2389019000 • A2389019800 • A2579011200 • A2579012100 the above-mentioned message is sporadically displayed in the instrument cluster once the over-the-air update to software release E843 (Software part number A2389022409) has been performed. The coding was performed incompletely here. Remedy A relevant over-the-air software update campaign for the control unit N112/9 (HERMES) is in preparation. If the vehicle is already on site, the problem can be rectified by manually commissioning the control unit N112/9 (HERMES) with XENTRY: XENTRY. "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit"

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  Associated Documents

  • DownloadMC-11017210-0001.pdf↗
• April 21, 2025•Document ID: 11017217

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  LI83.30-P-079081

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  Complaint Random heating of air conditioning system. Cause Temperature sensor in overhead control panel (OCP) delivering incorrect values: The temperature sensor in the overhead control panel is malfunctioning. Fault code B110709 or fault code B11F697 are present in the overhead control panel with the status (active) or (active stored). or The temperature sensor in the overhead control panel measures an incorrect temperature (the temperature value can be checked against the actual value in the overhead control panel) If the above-mentioned fault code is not present, the cause could be malfunction on the air conditioning system. Remedy If one of the above-mentioned fault codes should occur, a TIPS case must be created here. If the above fault codes or actual value differences are present in the OCP - please send the case to the Body/Chassis/ Entertainment inbox. Otherwise, the case must be sent to the HV/LV inbox for support in A/C diagnosis. *** It is not necessary to replace the overhead control panel ***

  Associated Products (49)

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  Associated Documents

  • DownloadMC-11017217-0001.pdf↗
• April 21, 2025•Document ID: 11017135

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.30-P-079004

  Date Added:

  April 23, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause On vehicles with HERMES 3.0 currently, • A2389015700 • A2389015800 • A2389018400 • A2389018900 • A2389019000 • A2389019800 • A2579011200 • A2579012100 The above-mentioned message is sporadically displayed in the instrument cluster once Remedy Please manually commission the control unit N112/9 (HERMES) using XENTRY: XENTRY→ "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit" Invoice the required work using damage code 8251M/01 (damage location/damage type).

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  Associated Documents

  • DownloadMC-11017135-0001.pdf↗
• April 21, 2025•Document ID: 11017127

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; SEATS

  Mfr Comm. #:

  LI91.10-P-078305

  Date Added:

  April 22, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. Cause The cause is currently being investigated. Remedy A remedy is currently not available. A software update in the seat control unit does not solve the problem. The document will be updated once the reason has been analyzed and a remedy is available.

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  Associated Documents

  • DownloadMC-11017127-0001.pdf↗
• April 11, 2025•Document ID: 11017516

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  LI46.10-P-078012

  Date Added:

  May 2, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy Test Procedure: Perform an initial quick test with freeze frame data. Save the N179 - Hand detection system (HE) and N62/4 - Driver assistance system (SG-FAS) control unit logs. Note the fault frequency of fault codes set. Delete the N179 and N62/4 fault memory. Test: Please flash the IDC (N62/4) software A223 902 75 37 (only applies to HOSWD223). Erase fault memory Reset the HOSWD control unit in line with the guided test in Xentry. Using both hands, "scan" the steering wheel all the way round, including the chrome molding at 6 o'clock (see Picture 1). Read out fault memory and follow steps below for any faults set. Remedy: Switch on ignition without touching the steering wheel. If after 10 seconds without touching the steering wheel, one of the two fault messages appears in the IC: Please check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). If there is visible damage -> replace steering wheel electronics or feed lines. If there is no visible damage -> replace steering wheel rim. If no yellow message appears in the instrument cluster within 10 seconds: Please grab the steering wheel all the way round, including the 6 o'clock chrome molding, with both hands (see picture 1). If the fault is triggered by grabbing the steering wheel rim or pressing on the 6 o'clock clasp, check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). Check ground connections (screw connections and cable to steering wheel rim); if necessary tighten screws/bolts and check for corrosion (Picture 4). If there is visible damage -> replace steering wheel electronics or feed lines. If no defect is visible: Please do not replace the steering wheel, but wait for new coding parameters which should be available 05/2025. Vehicles with control unit N179 - Hand detection system (HE): B1E7614: Check contacts and wiring harness in steering wheel by carrying out a visual check for damage, pinched areas, loose connections, etc. (examples in Figs. 2 and 3); If no damage is noted replace the N135 - Steering wheel electronics (LRE) and reassess. If fault code returns replace the steering wheel. B1E7713: Please check the wires and connections in the steering wheel. Afterwards, please check whether the complaint is caused by over torqued screws on steering wheel trim pieces. To do this, please loosen the screws slightly and reevaluate the situation. (Picture 4). P164456: Perform SCN coding. P1CA000: Perform an initial start-up on the N179 hand detection control unit. Faults in N62/4 - Driver assistance system (SG-FAS) control unit with U186B29, U0429E0, U042941, U042929, U042902, U0429E1: If no fault is stored in the N179 control unit: Scan steering wheel as indicated in the test procedure and check whether the fault is reproducible. If no fault code is stored in the hand detection control unit, the fault codes in the driver assistance systems control unit are precautionary messages. Software for the N62/4 - Driver assistance system (SG-FAS) is now available for Star 3 vehicles only. Fault in IDC223 control unit: U186B29: Delete fault memory and flash the new IDC (N62/4) software A223 902 75 37. If the software update is not available, or the problem persists, create a TIPS case. Fault in IDC213 control unit: U0429E0, U042941, U042929, U042902, U0429E1: If no fault is stored in the HOSWD control unit then scan the steering wheel and check whether the fault is reproducible. If reproducible: Create a TIPS case, adding the

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  Associated Documents

  • DownloadMC-11017516-0001.pdf↗
• April 7, 2025•Document ID: 11017229

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-063502

  Date Added:

  April 25, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high loads. This can result in noises under certain operating conditions and driving styles. Please refer to the Operator's Manual for further information such as care and maintenance instructions (washing vehicle directly after heavy use and using approved cleaning agents). These are dependent on speed, brake pressure or ambient conditions such as temperature and air humidity. 1. Beginning Diagnostics: a) Check whether the complaint can be reproduced and at which axle or side the noises occur (ideally together with the customer while driving). b) Check the affected system for component wear, mechanical damage or localized overheating damage. Replace damaged components as necessary. c) Assess condition of brake rotors and pads per WIS and visually (i.e. long periods of stagnation, etc...). d) Clean brake components free of brake dust and debris. d) Secure vehicle on a lift. 1. Start the engine and depress the brake pedal 3-4 times. 2. Check each wheel to see if they turn freely by hand. 3. If a wheel is not turning freely by hand, this needs to be addressed prior to re-assessing the noise concern. e) Check whether, apart from this document, an additional document exists for the specific model in question, and if so, work through it and then continue. 2. Specific Axle Work: NOTE: If the brake pad has a metal backing plate, there is no need to affix the adhesive film. a) If the noises are coming from the front axle => Affix linings with adhesive film (see attachments for front axle). If backing plate is installed on pads, move to step 3. 1. Remove brake linings of front axle. 2. Clean all contact points on brake lining and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining where the piston contacts the pad backing plate. See picture "Adhesive and Paste Application Area". 4. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfered Pads". 5. Apply heat-resistant lubricating paste to the sides of the backing plate. See picture "Adhesive and Paste Application Area". 6. After installing the brake linings, actuate the brake for 30 seconds. b) If the noises are coming from the rear axle => Affix linings with adhesive film and grease the lining as per the specification (see attachments for rear axle). 1. Remove brake pads of rear axle. 2. Cleaning all contact points on brake lining and brake caliper/carrier. 3. Grease contact points (red areas) between brake lining and guide of brake caliper with heat-resistant lubricating paste. 4. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining. 5. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfered Pads". IMPORTANT: Be absolutely certain to not allow paste between friction surfaces of the pad and disc! 3. Brake Bedding Process: a) Before trip, the mileage incurred must be clarified with the customer (approx. 30 miles). b) Select a suitable route so speeds of approximately 65 MPH can be achieved. c) If the vehicle is an AMG P3 Hybrid, switch off recouperation prior to bedding in brakes. d) Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 62 MPH to 30 MPH (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1 mile between brake applications. e) Finally drive approx. 3 miles to allow the system to cool. f) Reassess noise.

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  Associated Documents

  • DownloadMC-11017229-0001.pdf↗
• March 28, 2025•Document ID: 11016159

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.71-P-078802

  Date Added:

  April 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number should be either: • 247 904 6600 (E905.4) OR • 247 904 7500 (E906.1) If vehicle fits all criteria and either target software is not available via Xentry, please open an XSS ticket.

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  Associated Documents

  • DownloadMC-11016159-0001.pdf↗
• March 21, 2025•Document ID: 11016034

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  NCU - 2025030006

  Date Added:

  March 27, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the SCN coding in the MBUX multimedia system control unit does not correspond to the latest production specifications. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform an SCN coding in the MBUX multimedia system control unit.

  Associated Products (1)

  2022 Mercedes-Benz GLB-Class
  Associated Documents

  • DownloadMC-11016034-0001.pdf↗
• March 18, 2025•Document ID: 11015836

  Service Bulletin/Repair Instructions
  WHEELS; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI40.15-P-073336

  Date Added:

  March 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Front right tire pressure sensor sporadically or permanently not detected. Applicable fault codes on front right tire pressure sensor, see table "Control unit/fault code". Cause Coaxial cable from instrument cluster to instrument cluster control unit (under driver's seat) damaged. Remedy Check coaxial cable from display cluster for head unit/instrument cluster (A26/17 or A40/16 - depending on equipment variant) to head unit/display cluster control unit (N133/1 or N166). If the plug contact of the coaxial cable or the connector housing connection is faulty, replace coaxial cable (see XPI).

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  Associated Documents

  • DownloadMC-11015836-0001.pdf↗
• March 18, 2025•Document ID: 11015813

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS

  Mfr Comm. #:

  LI54.71-P-078802

  Date Added:

  March 19, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 177, 213, 238, 243, 247, 253, and 293 use Xentry to update headunit (A26/17). Target software number is 247 904 6600 (E905.4). If vehicle fits all criteria and target software is not available via Xentry, please open an XSS ticket.

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  Associated Documents

  • DownloadMC-11015813-0001.pdf↗
• March 11, 2025•Document ID: 11015574

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI54.30-P-079004

  Date Added:

  March 12, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause On vehicles with HERMES 3.0 currently, • A2389015700 • A2389015800 • A2389018400 • A2389018900 • A2389019000 • A2389019800 • A2579011200 • A2579012100 the above-mentioned message is sporadically displayed in the instrument cluster once the over-the-air updates to software release E843 (software part number A2389022409) have been performed. The issue is currently being analyzed; the cause is still unclear. Remedy Please manually commission the control unit N112/9 (HERMES) using XENTRY: XENTRY. "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit" Invoice the required work using damage code 8251M/01 (damage location/damage type).

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  Associated Documents

  • DownloadMC-11015574-0001.pdf↗
• March 10, 2025•Document ID: 11015617

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI72.20-P-075746

  Date Added:

  March 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead. This reduces the likelihood of the button being activated accidentally or unintentionally. The recoding can be carried out as follows: 1. Enter AO Code O19 into VeDoc (O for Oscar, not "zero") 2. EZS N73: Perform SCN coding 3. Deactivate the vehicle key (a successful deactivation is indicated by the LED lighting up 2x briefly and then 1x for a long period). 4. Place the vehicle key on the key symbol in the storage compartment and then switch on the ignition. All other vehicle keys must be outside of the vehicle when doing this! Perform steps 3 and 4 successively for all vehicle keys. Notes: 6th, 7th and 8th generation keys can be deactivated as follows: Up to modification year 22/1 double-click on the locking button As of modification year 22/1, by pressing and holding the locking button + double-clicking on the release tab On model series 167, the storage compartment with the key symbol is located in the armrest. The SCN coding from the EZS is only transferred correctly to the vehicle key under the following conditions: Only one vehicle key is located in the vehicle, this key has been deactivated and it is positioned on the marking in the storage compartment for the data transfer. The costs for this adaptation are to be borne by the customer.

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  Associated Documents

  • DownloadMC-11015617-0001.pdf↗